The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2017-11878)
A security feature bypass vulnerability exists in Microsoft Office software by not enforcing macro settings on an Excel document. The security feature bypass by itself does not allow arbitrary code execution. To successfully exploit the vulnerability, an attacker would have to embed a control in an Excel worksheet that specifies a macro should be run.
(CVE-2017-11877)
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file. (CVE-2017-11884)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include("compat.inc");
if (description)
{
script_id(104556);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/03");
script_cve_id("CVE-2017-11877", "CVE-2017-11878", "CVE-2017-11884");
script_bugtraq_id(100734, 100751, 101766);
script_xref(name:"MSKB", value:"4011197");
script_xref(name:"MSKB", value:"4011220");
script_xref(name:"MSKB", value:"4011233");
script_xref(name:"MSKB", value:"4011199");
script_xref(name:"MSFT", value:"MS17-4011197");
script_xref(name:"MSFT", value:"MS17-4011220");
script_xref(name:"MSFT", value:"MS17-4011233");
script_xref(name:"MSFT", value:"MS17-4011199");
script_xref(name:"IAVA", value:"2017-A-0337-S");
script_name(english:"Security Updates for Microsoft Excel Products (November 2017)");
script_summary(english:"Checks for Microsoft security updates.");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Excel Products are affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :
- A remote code execution vulnerability exists in
Microsoft Office software when the software fails to
properly handle objects in memory. An attacker who
successfully exploited the vulnerability could run
arbitrary code in the context of the current user. If
the current user is logged on with administrative user
rights, an attacker could take control of the affected
system. An attacker could then install programs; view,
change, or delete data; or create new accounts with full
user rights. (CVE-2017-11878)
- A security feature bypass vulnerability exists in
Microsoft Office software by not enforcing macro
settings on an Excel document. The security feature
bypass by itself does not allow arbitrary code
execution. To successfully exploit the vulnerability, an
attacker would have to embed a control in an Excel
worksheet that specifies a macro should be run.
(CVE-2017-11877)
- A remote code execution vulnerability exists in
Microsoft Office software when the software fails to
properly handle objects in memory. An attacker who
successfully exploited the vulnerability could run
arbitrary code in the context of the current user. If
the current user is logged on with administrative user
rights, an attacker could take control of the affected
system. An attacker could then install programs; view,
change, or delete data; or create new accounts with
full user rights. Users whose accounts are configured
to have fewer user rights on the system could be less
impacted than users who operate with administrative
user rights.
Exploitation of the vulnerability requires that a user
open a specially crafted file with an affected version
of Microsoft Office. In an email attack scenario, an
attacker could exploit the vulnerability by sending the
specially crafted file to the user and convincing the
user to open the file. In a web-based attack scenario,
an attacker could host a website (or leverage a
compromised website that accepts or hosts user-provided
content) containing a specially crafted file designed
to exploit the vulnerability. An attacker would have no
way to force users to visit the website. Instead, an
attacker would have to convince users to click a link,
typically by way of an enticement in an email or
instant message, and then convince them to open the
specially crafted file. (CVE-2017-11884)");
# https://support.microsoft.com/en-us/help/4011197/descriptionofthesecurityupdateforexcel2010november14-2017
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?92b81e09");
# https://support.microsoft.com/en-us/help/4011220/description-of-the-security-update-for-excel-2016-november-14-2017
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ec4b4942");
# https://support.microsoft.com/en-us/help/4011233/description-of-the-security-update-for-excel-2013-november-14-2017
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?79b55073");
# https://support.microsoft.com/en-us/help/4011199/descriptionofthesecurityupdateforexcel2007november14-2017
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c66f32ec");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4011197
-KB4011220
-KB4011233
-KB4011199");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-11884");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/14");
script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:excel");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("office_installed.nasl", "microsoft_office_compatibility_pack_installed.nbin", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
script_require_keys("SMB/MS_Bulletin_Checks/Possible");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");
include("install_func.inc");
global_var vuln;
get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
bulletin = "MS17-11";
kbs = make_list(
'4011197', # Excel 2010 SP2
'4011199', # Excel 2007 SP3
'4011220', # Excel 2016
'4011233' # Excel 2013 SP1
);
if (get_kb_item("Host/patch_management_checks"))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);
vuln = FALSE;
port = kb_smb_transport();
######################################################################
# Excel 2007, 2010, 2013, 2016
######################################################################
kb16 = "4011220";
excel_checks = make_array(
"12.0", make_array("sp", 3, "version", "12.0.6780.5000", "kb", "4011199"),
"14.0", make_array("sp", 2, "version", "14.0.7190.5000", "kb", "4011197"),
"15.0", make_array("sp", 1, "version", "15.0.4981.1000", "kb", "4011233"),
"16.0", make_nested_list(
make_array("sp", 0, "version", "16.0.4615.1000", "channel", "MSI", "kb", kb16),
make_array("sp", 0, "version", "16.0.7766.2122", "channel", "Deferred", "kb", kb16),
make_array("sp", 0, "version", "16.0.8201.2207", "channel", "Deferred", "channel_version", "1705", "kb", kb16),
make_array("sp", 0, "version", "16.0.8431.2110", "channel", "First Release for Deferred", "kb", kb16),
make_array("sp", 0, "version", "16.0.8625.2127", "channel", "Current", "kb", kb16)
)
);
if (hotfix_check_office_product(product:"Excel", checks:excel_checks, bulletin:bulletin))
vuln = TRUE;
if (vuln)
{
replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}